<template>
	<view class="wrap">
		<u-waterfall v-model="flowList" ref="uWaterfall">
			<template v-slot:left="{leftList}">
				<view class="demo-warter" v-for="(item, index) in leftList" :key="index" @click="goProductDetail(item)">
					<!-- 警告：微信小程序中需要hx2.8.11版本才支持在template中结合其他组件，比如下方的lazy-load组件 -->
					<u-lazy-load threshold="-10" border-radius="10" :image="item.image" :index="index"></u-lazy-load>
					<view class="demo-title">
						{{item.store_name}}
					</view>
					<view class="demo-price">
						{{item.price}}元
					</view>
					<view class="demo-shop">
						已售{{item.sales}}
					</view>
				</view>
			</template>
			<template v-slot:right="{rightList}">
				<view class="demo-warter" v-for="(item, index) in rightList" :key="index" @click="goProductDetail(item)">
					<u-lazy-load threshold="-10" border-radius="10" :image="item.image" :index="index"></u-lazy-load>
					<view class="demo-title">
						{{item.store_name}}
					</view>
					<view class="demo-price">
						{{item.price}}元
					</view>
					<view class="demo-shop">
						已售{{item.sales}}
					</view>
				</view>
			</template>
		</u-waterfall>
		<!-- <u-loadmore bg-color="rgb(240, 240, 240)" :status="loadStatus" @loadmore="addRandomData"></u-loadmore> -->
	</view>
</template>

<script>
	import {tripList} from '@/api/scenic'
	export default {
		data() {
			return {
				loadStatus: 'loadmore',
				flowList: [],
				page: 1,
				limit: 20,
			}
		},
		onLoad() {
			this.addRandomData();
		},
		onReachBottom() {
			this.loadStatus = 'loading';
			// 模拟数据加载
			setTimeout(() => {
				this.addRandomData();
				this.loadStatus = 'loadmore';
			}, 300)
		},
		methods: {
			// addRandomData() {
			// 	for(let i = 0; i < 10; i++) {
			// 		let index = this.$u.random(0, this.list.length - 1);
			// 		// 先转成字符串再转成对象，避免数组对象引用导致数据混乱
			// 		let item = JSON.parse(JSON.stringify(this.list[index]))
			// 		item.id = this.$u.guid();
			// 		this.flowList.push(item);
			// 	}
			// },
			goProductDetail(item){
				uni.navigateTo({
					url:"/pages/product/product_detail?id="+item.id
				})
			},
			addRandomData(){
				let that = this
				let where = {
					page: this.page,
					limit: this.limit,
					keyword: '',
				}
				tripList(where).then(function(res) {
				  let data = res.data
				 data.forEach((item, index) => {
				 	that.flowList.push(item);
				 })
				 that.page++
				})
				.catch(err => {
					return that.$util.Tips({
						title: err
					});
				});
			},
			remove(id) {
				this.$refs.uWaterfall.remove(id);
			},
			clear() {
				this.$refs.uWaterfall.clear();
			}
		}
	}
</script>

<style>
	/* page不能写带scope的style标签中，否则无效 */
	page {
		background-color: rgb(240, 240, 240);
	}
</style>

<style lang="scss" scoped>
	.demo-warter {
		border-radius: 8px;
		margin: 5px;
		background-color: #ffffff;
		padding: 8px;
		position: relative;
	}
	
	.u-close {
		position: absolute;
		top: 32rpx;
		right: 32rpx;
	}
	
	.demo-image {
		width: 100%;
		border-radius: 4px;
	}
	
	.demo-title {
		font-size: 30rpx;
		margin-top: 5px;
		color: $u-main-color;
	}
	
	.demo-tag {
		display: flex;
		margin-top: 5px;
	}
	
	.demo-tag-owner {
		background-color: $u-type-error;
		color: #FFFFFF;
		display: flex;
		align-items: center;
		padding: 4rpx 14rpx;
		border-radius: 50rpx;
		font-size: 20rpx;
		line-height: 1;
	}
	
	.demo-tag-text {
		border: 1px solid $u-type-primary;
		color: $u-type-primary;
		margin-left: 10px;
		border-radius: 50rpx;
		line-height: 1;
		padding: 4rpx 14rpx;
		display: flex;
		align-items: center;
		border-radius: 50rpx;
		font-size: 20rpx;
	}
	
	.demo-price {
		font-size: 30rpx;
		color: #FF6600;
		margin-top: 5px;
	}
	
	.demo-shop {
		font-size: 22rpx;
		color: $u-tips-color;
		margin-top: 5px;
	}
</style>